NOTE: As their name suggests hints are not exactly Mr. Driller W cheats, and are usually just simple (but very useful) tips on how you can unlock secret level, features, find hidden areas and such. Hopefully these will make playing Mr. Driller W even more entertaining.

Endless Stages and Secret Character
To unlock the North Pole stage, simply clear the first six stages using any character and difficulty setting. To unlock the Moon Stage, reach a depth of 1500M on the North Pole Stage with any character on any difficulty setting. To unlock Rabbit, reach a depth of 2000M on the Moon Stage with any character on any difficulty setting. Rabbit's drill has a spread attack that clears three squares instead of just one. He can also climb two squares.

Moon (hard endless stage): To unlock the Moon Stage, reach a depth of 1500M on the North Pole Stage with any character on any difficulty setting.
North Pole (easy endless stage): To unlock the North Pole stage, simply clear the first six stages using any character and difficulty setting.
Rabbit (secret character): To unlock Rabbit, reach a depth of 2000M on the Moon Stage with any character on any difficulty setting.